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PROPOSAL FOR CLOSING PORTALS OF APEX MINE. <br /> 1. We will purchase polyurethane foam from foam concepts; [http://www.foamconceptslic.com/] <br /> PART EFS005.This is a two component all PDMI based low density pour in place foam.This <br /> product is being used as recommended by the Colorado State Mine Closure Consultants at the <br /> mine site July 20th, 2018. [material specs attached] <br /> 2. Material will be transported to the mine via pickup trucks. Material comes in sealed plastic bags <br /> inside of cardboard boxes.There will be a total of 7 boxes, at 1 cubic yard per box.We will have <br /> 5 persons working throughout the closure process. <br /> 3. At the Mine we will extract all existing timbers within safety of doing so. We will construct a <br /> backer wall approximately 64" from the drip edge of the entrance.The wall will act as a backing <br /> for the foam as per specs by foam concepts LLC.The wall be constructed of 2x4 lumber, with a <br /> 1' lumber facing.Wall does not need to be anchored, (according to the manufactures <br /> guidelines) Foam expands to side of mine wall and adheres to wall.Also, per conversation with <br /> Travis Marshall (supervisor at Colorado mine reclamation office) <br /> 4. As there is no signs of water in the mine a drain will not be put in per recommendation of <br /> consultants on site July 201h, 2018. <br /> 5. Foam material will be mixed at manufactures guidelines following all safety procedures.The <br /> foam will be layered in 18" increments, allowing the foam to set and cool 30 minutes between <br /> each pour.This is the procedure guidelines by the manufacturer.As each layer is poured natural <br /> rock will be added to the face for natural appearance.This will take approximately 3 days to <br /> complete this task to seal the mine closed. <br /> 6. When closure has reached ceiling and cooled, Ready mix mortar(transported by pickup from <br /> town to mine site in individual sacks)will be used around all rocks to cover all foam so no <br /> sunlight can reach foam.All the mortar will be mixed on site with water in 5 gallon buckets. <br /> 7. All rock and foam will be sloped to match existing slope face from ceiling to floor. <br /> 8. All leftover material and waste will be transported off site by pickup and taken to proper <br /> disposal. <br />